Corporation tax, VAT, PAYE and HMRC deadlines, explained plainly for agency founders. Staying compliant is the baseline; paying the right amount of tax is the goal.
Agency limited companies pay corporation tax on taxable profits. The main rate is 25% for profits above £250,000. Companies with profits below £50,000 pay the small profits rate of 19%. There is marginal relief between £50,000 and £250,000. Corporation tax is due nine months and one day after your accounting period ends, so if your year end is 31 March, payment is due by 1 January.
You must register for VAT when your taxable turnover exceeds £90,000 in a rolling 12-month period (2024/25 threshold). Many agencies register voluntarily before this point to reclaim VAT on costs. The Flat Rate Scheme can simplify administration and sometimes reduce the overall VAT bill for agencies. The rate for marketing and advertising services is 11%, but eligibility criteria apply and the benefit varies by agency type and cost structure.
Missing HMRC deadlines triggers automatic penalties. Key dates for limited company agency founders include: company accounts filing (9 months after year end), corporation tax return (12 months after year end), corporation tax payment (9 months and 1 day after year end), VAT returns (quarterly, 1 month and 7 days after period end), PAYE and NIC payments (19th of each month), and personal self assessment (31 January). We track all of these for our clients.
The Annual Investment Allowance (AIA) lets you claim 100% tax relief on qualifying plant and machinery up to £1 million per year. For agency founders, this covers everything from MacBooks and office furniture to servers and software. Here is how to make sure you are claiming everything you are entitled to.
The Annual Investment Allowance (AIA) lets your agency claim 100% tax relief on qualifying plant and machinery purchases up to £1 million per year. This guide covers what qualifies, what doesn't, and how to claim correctly.
The annual investment allowance (AIA) lets your agency claim 100% tax relief on qualifying plant and machinery purchases up to £1 million per year. This guide covers what qualifies, what doesn't, and how to claim it correctly for the 2024/25 tax year.
The Annual Investment Allowance (AIA) lets you deduct the full cost of qualifying plant and machinery from your profits, up to £1 million per year. For agency founders, this means new computers, office furniture, and even server equipment can be written off in full against your corporation tax. This guide explains how it works, what qualifies, and the traps to watch for.
The Annual Investment Allowance (AIA) lets you claim 100% tax relief on most plant and machinery purchases up to £1 million per year. Second-hand assets usually qualify, but there are important exceptions if you owned the item before, received it as a gift, or bought it from a connected person. This guide explains the rules for agency founders.
The Annual Investment Allowance (AIA) lets you deduct the full cost of qualifying plant and machinery from your taxable profits, up to £1 million per year. This guide explains what qualifies, what doesn't, and how agency founders can use it to reduce their corporation tax bill.
A worked example showing how a UK agency founder claims capital allowances on equipment purchases. Covers the £1m Annual Investment Allowance, writing-down allowances, and what qualifies as plant and machinery for a digital or creative agency.
Second-hand vans qualify for capital allowances, but the rules differ from new vans. You can claim 100% relief through the Annual Investment Allowance (AIA) up to £1m, or 18% writing-down allowances each year. This guide explains the options for UK agency founders.
Integral features capital allowances let you claim tax relief on specific building systems like lifts, heating, and lighting. This guide explains what qualifies, how to claim, and what agency founders need to know when buying or fitting out an office.
The Annual Investment Allowance (AIA) lets you deduct the full cost of qualifying plant and machinery from your profits before tax, up to a £1 million limit per year. This guide explains what qualifies, what doesn't, and how agency founders can claim it correctly.
A practical guide to writing down allowances for cars used by agency founders. Covers main rate and special rate pools, electric vehicle first-year allowances, and the upcoming rate changes from April 2026. Includes worked examples for a typical digital agency.
Writing down allowance rates changed from April 2026. The main pool rate dropped from 18% to 14%, and the special rate pool fell from 6% to 4%. This guide explains what agency founders need to know about claiming capital allowances on equipment, computers, office furniture, and integral features.
The Annual Investment Allowance (AIA) lets you claim 100% tax relief on qualifying equipment up to £1 million per year. This guide covers what agency founders can claim, what's excluded, and how the 2025 Budget changes affect your planning.
The annual investment allowance (AIA) lets you claim 100% tax relief on qualifying equipment up to £1 million per year. This guide covers what counts, how to claim, and the key rules for 2025/26.
A practical guide for agency founders on apportioning staff time for R&D tax credit claims. Covers qualifying activities, time tracking methods, and HMRC compliance requirements.
Capital allowances on property let you claim tax relief on qualifying fixtures, equipment, and buildings your agency uses. This guide explains what qualifies, how the Annual Investment Allowance and Structures and Buildings Allowance work, and what to watch for when buying or fitting out an office.
A practical guide to claiming capital allowances on vans for UK agency founders. Covers full expensing, annual investment allowance, writing-down allowances, and what happens if you use the van privately. Includes worked examples for limited companies and sole traders.
Full expensing capital allowances let your limited company deduct 100% of the cost of new plant and machinery from profits in the year of purchase. This guide explains what qualifies, what doesn't, and how agency founders can use it before the regime ends in March 2026.
A practical guide to the R&D tax credit claim process for UK agency founders. Covers the timeline from project identification to submission, the documentation you need, and the common mistakes that delay or reject claims.
HMRC investigates around 1 in 6 R&D claims. We explain the specific triggers that put agency claims under scrutiny, from claim value to sector focus, and how to prepare a defensible submission.
A practical guide to using a VAT calculation calculator for your agency. Covers standard and flat rate schemes, partial exemption, and the direct calculation scheme for retail agencies.
A practical guide for agency founders on calculating VAT. Covers the standard 20% rate, the flat rate scheme, and how to handle invoices and VAT returns. Includes worked examples for marketing, digital, and creative agencies.
A VAT tax calculator is a practical tool for agency founders, but only if you know which scheme you're on. We explain the difference between standard VAT accounting and the flat rate scheme, how to calculate what you owe, and what the £90,000 threshold means for your agency.
Most agency founders assume R&D tax credits are for labs and manufacturers. They are wrong. If your agency builds software, automates processes, or solves technical problems for clients, you could be leaving tens of thousands on the table. This checklist shows you exactly where HMRC draws the line.
The Annual Investment Allowance (AIA) lets you claim 100% tax relief on qualifying equipment purchases up to £1m per year. For agency founders in 2025/26, this covers computers, software, office furniture, and leasehold improvements. Here is how to use it properly.
Building custom attribution tooling to solve genuine technical uncertainty can qualify for R&D tax credits. We explain the criteria, the common pitfalls, and how to structure your claim so HMRC won't challenge it.
Custom integrations between software platforms can qualify for R&D tax credits if they solve genuine technical uncertainty. We walk through the criteria, common mistakes, and how to prepare a defensible claim for your agency.
Agencies spending £30k+ on office fit-outs often miss capital allowance claims worth thousands. We explain what qualifies as plant and machinery, what doesn’t, and how to structure your claim with your accountant before the year-end.
A practical breakdown of corporation tax for UK agency founders in the 2025/26 tax year. Covers rates, deadlines, allowable expenses, reliefs, and what to do before your year-end.
If a client goes bust or simply refuses to pay, you can claim corporation tax relief on the unpaid invoice. This guide explains exactly how to write off bad debts, what HMRC expects to see, and how to structure your accounts to make the claim stick.
If your agency bills retainers in advance, you've probably paid too much corporation tax. Here's how accruals accounting fixes the timing mismatch between cash received and work delivered.
If your agency builds custom software, you might qualify for R&D tax credits. But HMRC draws a clear line between genuine innovation and routine development. Here's where it sits for agency founders.
R&D tax credits are one of the most valuable reliefs available to UK agencies, but only if you can prove the work happened. This guide shows you exactly how to document R&D activity in your agency throughout the year, with practical systems that take minutes per week.
If your agency is fine-tuning a large language model to solve a specific client problem, you might be sitting on a legitimate R&D tax claim. We walk through the HMRC criteria, what counts as qualifying activity, and what HMRC will push back on.
A family investment company (FIC) lets you pass agency shares to your children while retaining control. The shares sit outside your estate after seven years, cutting inheritance tax. Here is how to set one up properly.
The flat rate VAT scheme used to be a licence to print money for agencies. The 2017 limited cost trader rules changed that. Here is whether it still makes sense for your agency in 2025/26.
If your e-commerce agency builds headless commerce solutions, you could be leaving thousands on the table. We break down what qualifies for R&D tax credits and what doesn't, with real examples from agency projects.
A compliance check from HMRC on your agency's freelancer payments can feel like a crisis. But with the right evidence and a clear process, most checks end with no penalty. Here is what to do from the moment the letter arrives.
A practical rundown of every HMRC deadline that matters for agency founders in the 2025/26 tax year. From corporation tax and VAT to payroll and self-assessment, we cover the dates, the penalties for missing them, and how to organise your compliance calendar.
Building custom Klaviyo flows and email automations for clients can qualify for R&D tax credits, but only if the work resolves genuine technical uncertainty. This guide explains what HMRC expects, what doesn’t qualify, and how to document your claims properly.
Late corporation tax filing penalties start at £100 for being one day late and escalate to tax-geared fines of up to 20% of your agency's tax bill. This guide covers the deadlines, penalty structure, and practical steps to keep your agency compliant.
The merged R&D scheme, effective from April 2023, replaced the old SME and RDEC regimes with a single framework. For UK agency founders, this changes how you claim relief on qualifying R&D projects. This post explains the new rules, rates, and what you need to do differently.
If you run a UK agency through a limited company, you probably provide yourself with benefits you haven't thought twice about. A company phone. Private medical insurance. A Christmas party that creeps over £150 per head. That director's loan you took to cover a cash flow gap. HMRC expects you to report most of these on a P11D form each year. Here's exactly what counts, what doesn't, and how to avoid a penalty.
The PAYE-NI cap limits R&D tax credits for agencies spending more on subcontractors than staff. Here's how it works, why creative and digital agencies get caught out, and how to structure your claim to avoid losing thousands.
Performance optimisation work can qualify for R&D tax credits, but the line between routine improvement and qualifying innovation is thin. We explain where HMRC draws that line, with real examples for marketing, creative, and digital agencies.
If your agency spends 30% or more of its total costs on qualifying R&D, you may be an R&D intensive SME. That means an enhanced payable credit rate of 27%, significantly better than the standard 14.5%. This article explains the test, what counts, and how to claim.
Many AI agency founders assume R&D tax credits only apply to labs and hardware projects. That is wrong. If your agency is building custom models, fine-tuning open-source LLMs, or engineering complex prompt chains to solve uncertain technical problems, you likely qualify. This post explains exactly what HMRC looks for, what does not qualify, and how to structure your claim.
If your agency is building custom RAG (Retrieval-Augmented Generation) pipelines for clients or internal tools, you might be leaving R&D tax credits on the table. Here's what qualifies, what doesn't, and how to structure your claim.
A practical guide for UK agency founders on claiming R&D tax credits for cloud compute costs on AWS, GCP, and GPU rental. We cover what qualifies, how to calculate the claim, and what HMRC looks for.
HMRC limits the subcontractor costs you can include in an R&D tax credit claim to 65% of the total qualifying expenditure. This rule catches many agency founders off guard. Here is exactly how it works, what counts as a subcontractor, and how to structure your projects to avoid losing thousands.
Many agency founders assume custom software built for clients never qualifies for R&D tax credits. That's not quite right. The real test is whether the project resolved technical uncertainty, not who paid for it.
Marketing agencies often miss out on R&D tax credits because they assume their work doesn't qualify. But if you're building new tools, automating processes, or solving technical problems, you might have a valid claim. Here's what HMRC looks for and what gets rejected.
HMRC can look at your retainer contracts with clients and argue your staff are actually their employees. This guide explains the specific contract clauses, working practices, and financial arrangements that trigger reclassification, and how to structure your retainers to avoid it.
SaaS agencies that build bespoke software often miss out on R&D tax credits because they assume their work is just development. The reality is that many of these projects involve genuine technical uncertainty. This article explains what qualifies, what doesn't, and how to structure a claim that HMRC will accept.
Section 455 of the Corporation Tax Act 2010 imposes a 33.75% tax charge on loans from your agency to you that aren't repaid within 9 months of the year end. This guide explains exactly how it works, when it applies, and the practical steps to avoid triggering it. We cover repayment deadlines, formal loan agreements, dividend alternatives, and what happens if HMRC comes calling.
VAT on client entertainment is one of the most common areas where agencies get it wrong. Client meals are generally blocked for VAT recovery, but staff entertaining is different. Here is the exact split and what you can actually reclaim.
HMRC strictly blocks VAT recovery on client entertainment costs. This guide explains the rules, the grey areas, and how to structure your spending so you don’t get caught out at VAT inspection.
Cross-border digital advertising creates VAT traps that catch agencies off guard. This guide covers place of supply rules, the reverse charge mechanism, and when you need to register for VAT in another country. Written for UK agency founders by an ICAEW-qualified accountant.
If your agency sells digital products like templates, courses, or software through your website, the VAT rules are different from selling services to clients. Where your customer is based determines whether you charge UK VAT, nothing, or register for MOSS. This article walks through the rules with real agency examples.
VAT confuses many agency founders at the point they hit the threshold. This guide covers when you must register, which VAT scheme suits an agency best, and what to actually charge your clients. Real numbers, real scenarios.
When your agency invoices the client as principal but uses subcontractors, the VAT treatment depends on whether you act as principal or agent. This post explains the difference, the common mistakes, and how to handle VAT on freelancer costs correctly.
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