If your spouse holds shares in your agency, you have a tax planning opportunity that single-director companies don't. You can shift income between you, making use of both personal allowances, both basic rate bands, and both dividend allowances. The question is which method does that most efficiently: salary sacrifice or dividend waiver?

Most articles compare salary vs dividends for one director. They don't tackle the strategic trade-off when a spouse owns shares and you want to move income from one person to the other. This article fills that gap. We'll work through the numbers for a typical agency founder paying themselves a salary and dividends, with a spouse who also holds shares.

The Two Mechanisms for Shifting Income

There are two ways to move income from you to your spouse in a limited company structure:

  • Salary sacrifice, you reduce your own salary, and the company pays a higher salary to your spouse instead.
  • Dividend waiver, you waive your right to some or all of your dividends, and your spouse receives more dividends from their shares.

Both achieve the same end goal: more income in your spouse's name, less in yours. But the tax treatment is different. And the practical implications for your agency are different too.

Salary Sacrifice: How It Works for Agency Founders

A salary sacrifice arrangement means you agree to reduce your contractual salary, and your employer (your own company) redirects that amount to your spouse as additional salary. This is common in larger companies for pension contributions, but it works for spousal income shifting too.

The Mechanics

Let's say you currently take a salary of £12,570 (the primary NI threshold). Your spouse takes nothing. You want to shift £12,570 of income from yourself to your spouse. Under a salary sacrifice, your salary drops to zero, and your spouse's salary rises to £12,570.

The company still pays £12,570 in total salary. The difference is who receives it.

The Tax Outcome

On the face of it, this looks clean. Your spouse gets £12,570 of salary, pays no income tax (covered by their personal allowance) and no employee NI (below the primary threshold). The company pays no employer NI either (below the secondary threshold of £9,100 for 2025/26).

But there's a catch. By reducing your own salary to zero, you lose access to certain state benefits. You won't build up qualifying years for the state pension. And if you need to claim statutory sick pay or maternity/paternity pay, you won't qualify because you have no earnings.

More importantly for agency founders: salary is a deductible expense for corporation tax. Your company gets 19% or 25% relief on every pound of salary paid. If you redirect salary from yourself to your spouse, the total deduction stays the same. No corporation tax impact.

When Salary Sacrifice Makes Sense

Salary sacrifice works well when:

  • Your spouse has no other income and can use their personal allowance fully.
  • You are already above the state pension full entitlement (35 qualifying years).
  • You don't need the state benefits that come with NI contributions.
  • Your agency has predictable cash flow and payroll is easy to administer.

Dividend Waiver: How It Works for Agency Founders

A dividend waiver is different. You don't change your salary at all. Instead, you waive your right to receive dividends on some or all of your shares. Your spouse then receives more dividends from their own shares.

This requires a formal waiver document, signed before the dividend is declared. You cannot waive dividends retrospectively. HMRC takes a dim view of that.

The Mechanics

Suppose your agency makes £100,000 profit after salary. You and your spouse each own 50% of the shares. Normally, you'd each receive £50,000 in dividends. Under a dividend waiver, you waive £30,000 of your entitlement. Your spouse receives £80,000 in total dividends.

The total dividend paid by the company is still £100,000. The split has changed.

The Tax Outcome

Dividend waiver shifts income from your marginal rate to your spouse's marginal rate. If you are a higher rate taxpayer (40% income tax) and your spouse is a basic rate taxpayer (20%), the saving can be significant.

Here's the worked example:

  • You: £50,000 dividends. First £500 covered by dividend allowance. Next £37,500 taxed at 8.75% (basic rate). Remaining £12,000 taxed at 33.75% (higher rate). Total dividend tax: £3,281.25 + £4,050 = £7,331.25.
  • Spouse: £50,000 dividends. Same calculation. Total dividend tax: £7,331.25.
  • Combined: £14,662.50.

Now with a waiver of £30,000 from you to your spouse:

  • You: £20,000 dividends. First £500 at 0%. Next £19,500 at 8.75%. Total dividend tax: £1,706.25.
  • Spouse: £80,000 dividends. First £500 at 0%. Next £37,500 at 8.75% (£3,281.25). Remaining £42,000 at 33.75% (£14,175). Total dividend tax: £17,456.25.
  • Combined: £19,162.50.

That's worse, not better. The spouse has moved into the higher rate band because they received too much income. The waiver backfired.

The trick is to waive only enough to keep both of you in the basic rate band. If you are a higher rate taxpayer and your spouse has unused basic rate band, a partial waiver can save tax. But you need to calculate it carefully.

When Dividend Waiver Makes Sense

Dividend waiver works well when:

  • You are a higher or additional rate taxpayer and your spouse has significant unused basic rate band.
  • Your spouse has no other income pushing them into higher rates.
  • You want to keep your own salary intact for NI contribution purposes.
  • Your agency has sufficient retained profits to declare dividends at the new split.

Head-to-Head Comparison: Salary Sacrifice vs Dividend Waiver

Let's compare both methods side by side for a typical agency founder scenario.

Scenario: A 12-person digital agency billing £800k per year. The founder takes a salary of £12,570 and dividends of £60,000. Their spouse owns 40% of the shares but currently takes no salary and no dividends. The founder wants to shift £20,000 of income to their spouse to reduce the overall tax bill.

Option 1: Salary Sacrifice

  • Founder salary drops from £12,570 to £0.
  • Spouse salary rises from £0 to £12,570.
  • Remaining £7,430 shifted via increased dividends to spouse.
  • Corporation tax: unchanged (total salary deduction same).
  • Personal tax: spouse pays no tax on salary (personal allowance covers it). Spouse pays 8.75% on £7,430 dividends = £650.
  • Founder saves higher rate tax on £20,000 of dividends they no longer receive: 33.75% of £20,000 = £6,750 saved.
  • Net saving: £6,100.
  • Downside: founder loses NI contribution year for state pension.

Option 2: Dividend Waiver

  • Founder salary stays at £12,570.
  • Founder waives £20,000 of dividends.
  • Spouse receives additional £20,000 in dividends.
  • Corporation tax: unchanged (dividends are not deductible anyway).
  • Personal tax: spouse now receives £20,000 more in dividends. If spouse has no other income, they pay 8.75% on £19,500 (after £500 allowance) = £1,706.25.
  • Founder saves 33.75% on £20,000 = £6,750.
  • Net saving: £5,043.75.
  • Downside: none on NI, but requires formal waiver documentation.

In this case, salary sacrifice saves more (£6,100 vs £5,043.75). But that assumes the spouse has no other income. If the spouse has their own job earning £30,000, the dividend waiver becomes more attractive because the salary would push them into higher rate tax, while dividends are taxed at lower rates.

The Corporation Tax Angle

One factor that often gets overlooked: salary is deductible for corporation tax, dividends are not. If you shift income via salary sacrifice, the total salary bill stays the same. No corporation tax impact.

But if you shift income via dividend waiver, you are not changing the total dividends paid. The company still pays the same amount. No corporation tax impact there either.

So corporation tax is neutral in both cases. The difference is entirely in the personal tax position of you and your spouse.

Practical Considerations for Agency Founders

There are practical differences between the two methods that go beyond tax calculations.

Payroll and Admin

Salary sacrifice requires running payroll for your spouse. If they are not already on the payroll, you need to set them up. That means RTI submissions, payslips, and potentially pension auto-enrolment if their earnings exceed £10,000. For a small agency, this is straightforward in Xero or QuickBooks payroll, but it is extra admin.

Dividend waiver requires a signed waiver document for each dividend declaration. You need to keep these on file in case HMRC asks. They are simple to produce but easy to forget. If you waive dividends without a formal document, HMRC can treat the dividend as still belonging to you.

IR35 Considerations

If your spouse works in the agency as an employee or director, salary sacrifice is straightforward. If they are not involved in the business at all, paying them a salary can look artificial. HMRC may challenge the salary as not being wholly and exclusively for the purposes of the trade. Dividend waiver avoids this issue because dividends are paid on shares, not for services rendered.

For agency founders who use contractors, be careful not to confuse salary sacrifice arrangements with IR35 determinations. Your spouse's salary is a separate matter from contractor status. If you need guidance on contractor compliance, see our contractors and IR35 resources.

State Pension and Benefits

If you are under state pension age and have fewer than 35 qualifying NI years, salary sacrifice could cost you future state pension entitlement. Each year of NI contributions adds about £275 to your annual state pension. If you sacrifice salary for 10 years, that's £2,750 per year lost in retirement.

Dividend waiver does not affect your NI record. You keep your salary, keep your NI contributions, and only shift the dividend income.

Which One Should You Choose?

There is no universal answer. It depends on your specific circumstances. Here is a decision framework:

  • If your spouse has no other income and you are comfortable losing a NI year: salary sacrifice is usually better. It uses the personal allowance fully and saves more tax.
  • If your spouse has their own income and you want to preserve your NI record: dividend waiver is better. It keeps your salary intact and shifts only dividend income.
  • If your spouse works in the agency and you both need NI contributions: keep both salaries at £12,570 and use dividend waiver for any additional income shifting.
  • If you are approaching retirement and need to maximise your state pension: avoid salary sacrifice. Dividend waiver is safer.

How to Implement Either Strategy

Whichever route you choose, you need to do it properly.

For salary sacrifice:

  1. Write a formal variation to your employment contract, reducing your salary.
  2. Set up your spouse on the payroll if they are not already.
  3. Update your RTI submissions with HMRC.
  4. Check pension auto-enrolment obligations.

For dividend waiver:

  1. Prepare a waiver document stating the amount you waive and the dividend date.
  2. Both you and your spouse sign it before the dividend is declared.
  3. Declare the dividend at the new split in your board minutes.
  4. Process the dividend payments through your accounting software.

Both strategies require careful record-keeping. As ICAEW qualified accountants, we recommend you discuss any income shifting with your accountant before implementing it. The rules around settlements (the "settlements legislation") mean HMRC can reattribute income back to you if the arrangement is purely for tax avoidance without any commercial purpose. If your spouse genuinely owns shares and is involved in the business, this is rarely an issue. But if the arrangement looks artificial, HMRC may challenge it.

Final Thoughts

Salary sacrifice and dividend waiver are both legitimate ways to shift income between you and your spouse. The right choice depends on your personal tax position, your NI record, and how your spouse is involved in the agency.

For most agency founders, a hybrid approach works best: keep both salaries at £12,570 (using the personal allowance and NI thresholds), then use dividend waivers to balance the remaining income between basic and higher rate bands. This gives you the best of both worlds: NI contributions for both of you, and lower overall dividend tax.

If you want to run the numbers for your specific situation, get in touch with our team. We work exclusively with agency founders and understand the nuances of spousal income planning in a limited company structure.