Personal Savings Allowance (PSA)

Q: What happens if I miss the Self Assessment deadline?

The Self Assessment deadline is 31 January (online filing) for the previous tax year. Miss it and HMRC apply an automatic £100 penalty. Beyond that: £10 per day from 3 months late (capped at £900), 5% of tax due at 6 months late, and another 5% at 12 months late, under Schedule 55 of the Taxes Management Act 1970. If you have a genuine reason (serious illness, bereavement, technical issue with HMRC's systems) you can appeal with evidence; HMRC accepts reasonable excuse appeals in most genuine cases.

Q: Do I need an accountant or can I file Self Assessment myself?

Legally you can file Self Assessment yourself via gov.uk for free, most simple sole-trader returns (single income source, basic expenses) are realistic to self-file. An accountant adds real value when: your trading profit is above £40,000 (extraction-strategy decisions matter), you have multiple income streams (PAYE + self-employment + property + dividends), you've crossed the £90,000 VAT threshold, you're considering incorporation, or you have an HMRC enquiry. Expect to pay £400-£1,500/year for a typical sole-trader accountant; the cost is itself a deductible expense.

Q: How do payments on account work?

When your Self Assessment tax bill exceeds £1,000 for the first time, HMRC requires payments on account toward NEXT year's tax. Half the current bill is due 31 January (alongside the current bill); the other half is due 31 July. So your first January after crossing the threshold can hit with a double-bill: last year's balance + first payment on account. Adjust via Form SA303 if you expect next year's income to drop substantially. Payments on account don't apply if more than 80% of your tax is collected via PAYE.

Q: I'm a Ltd Co director with £55,000 income, what's my PSA?

£500 (higher-rate band starts at £50,271 in 2025/26). Half the basic-rate PSA. If you can structure remuneration to stay below £50,270 (e.g. via pension contributions reducing adjusted net income, though PSA test uses TOTAL TAXABLE INCOME, slightly different from adjusted net income, pension contributions DON'T reduce TOTAL INCOME for PSA purposes). The PSA test is gross income before pension contributions deducted. Strategic options: hold savings via spouse (if lower-earning) → spouse may have full £1,000 PSA available; hold savings in ISA (£20,000/year limit, all interest tax-free, no PSA dependency).

Q: I'm not working + only have £15,000 of savings interest, what tax do I pay?

Likely ZERO. Calculation: Personal Allowance £12,570 covers first £12,570 of any income; Starting Savings Rate £5,000 at 0% then covers next £5,000 of savings interest. Total income £15,000 fits within £12,570 PA + £5,000 SSR + £1,000 PSA = £18,570 of tax-free coverage. £15,000 of savings interest entirely tax-free in this scenario. Useful for retired non-working individuals living off savings interest.

Q: Does PSA apply to my Ltd Co loan interest received?

Yes, interest received from connected loans (e.g. director loan account interest, loan to family member at interest) is SAVINGS INCOME for PSA purposes. Treated the same as bank interest. Watch the IR35-adjacent rules where director-shareholder lending to own company creates artificial-interest arrangements (HMRC anti-avoidance scrutiny). Genuine commercial-rate lending: PSA applies to interest received.

Q: Why is PSA £0 for additional-rate taxpayers, is there ANY tax-free saving option for them?

ISAs are the universal answer. Stocks + Shares ISA + Cash ISA: £20,000 combined annual subscription, all income + gains tax-free regardless of income band. Additional-rate taxpayers with substantial savings should prioritise ISA usage every tax year (use-it-or-lose-it annual limit). Beyond ISA: National Savings + Investments (NS&I) Premium Bonds, prize winnings tax-free regardless of band. Some investment bonds + offshore structures provide tax-deferral mechanics. For investment income (vs savings interest), VCT dividends remain tax-free regardless of band (separate relief).

Personal Savings Allowance (PSA) is a NIL-RATE BAND applied to taxable SAVINGS INCOME (primarily interest from banks, building societies, savings accounts, savings bonds). **Rates 2025/26**: £1,000 for BASIC-RATE taxpayers (total income up to £50,270); £500 for HIGHER-RATE taxpayers (£50,271-£125,140); £0 for ADDITIONAL-RATE taxpayers (above £125,140). Unchanged since 2016 reform. **Starting Savings Rate**: additional £5,000 of savings interest taxable at 0% for individuals with TOTAL TAXABLE INCOME below £17,570 (i.e. limited to non-working / low-earning population with savings). Each is independent, owner-directors holding personal cash reserves may use both PSA + Starting Savings Rate depending on income profile. Strategic profit-extraction timing can preserve the higher £1,000 basic-rate PSA where income would otherwise tip into higher rate.

Last reviewed: 23 May 2026

Guidance, not advice. We explain the rules, we don't assess your situation. Always seek financial or tax advice from your accountant, or contact HMRC. Read our editorial scope →

What this relief is, in plain English

PSA is the modest tax-free annual allowance on savings interest for most UK individuals. Generous for basic-rate taxpayers (£1,000 covers reasonable bank balances at moderate interest rates), modest for higher-rate (£500), nil for additional-rate. The Starting Savings Rate (£5,000 at 0%) layered on top is generous for low-income / non-working individuals. Key planning interactions: PSA test uses TOTAL TAXABLE INCOME (not adjusted net income for HICBC/PA-taper purposes), pension contributions don't reduce PSA-band test. Higher-rate threshold £50,270: crossing it halves PSA from £1,000 to £500. Additional-rate threshold £125,140: crossing it eliminates PSA entirely. Strategic options for higher earners: ISA subscriptions (£20,000/year tax-free); shifting savings to lower-earning spouse (full £1,000 PSA available); NS&I Premium Bonds (tax-free prize winnings). For most working-age basic-rate taxpayers with modest savings (~£20k-£30k balance), the £1,000 PSA comfortably covers all annual interest at typical 4-5% rates.

How it works

PSA nil-rate band by income band

Basic-rate taxpayer (total income £12,571-£50,270): £1,000 PSA. Higher-rate (£50,271-£125,140): £500. Additional-rate (above £125,140): £0. Income-band test uses TOTAL TAXABLE INCOME, not adjusted net income. Pension contributions don't reduce PSA band test.

Starting Savings Rate £5,000 at 0%

Available for individuals with TOTAL TAXABLE INCOME below £17,570. Layered on top of Personal Allowance + PSA. Useful for retired / non-working / low-earning population.

Applies to savings interest + similar

Savings interest from banks, building societies, savings accounts, savings bonds. Includes interest from director loan account, family loans at interest, P2P lending. Does NOT apply to dividend income (separate Dividend Allowance) or rental income or trading income.

Spouse-shifting strategy

Where one spouse has lower income (e.g. basic rate vs other spouse's additional rate), holding savings in lower-earning spouse's name accesses their higher PSA. For higher / additional rate couples: shift savings to basic-rate spouse to maximise PSA across the household.

Who qualifies

UK individual receiving savings interest
PSA rate determined by total taxable income band (basic £1k / higher £500 / additional £0)
Starting Savings Rate £5,000 only if total income <£17,570
Spouses / civil partners can shift savings between names to optimise PSA usage
ISA accounts remain tax-free regardless of band (separate relief from PSA)

Interactions with other reliefs

Dividend Allowance (£500)

PSA + Dividend Allowance run in parallel, both available simultaneously. Owner-directors with mixed dividend + interest income use both annually.

ISA + Premium Bonds

ISAs (£20k annual subscription, all income + gains tax-free) provide universal tax-free saving regardless of PSA band. Premium Bonds tax-free prizes. Both bypass PSA entirely + work for additional-rate taxpayers where PSA = £0.

Marriage Allowance + Spouse-shifting

Where one spouse below PA + other basic-rate: Marriage Allowance transfers £1,260 PA to higher earner. Savings can also be shifted to lower-earning spouse to access their higher PSA. Multiple optimisation routes combine.

VCT dividend exemption

VCT dividends are completely tax-free regardless of allowance position. Additional-rate taxpayers with substantial UK-equity income often hold VCT alongside savings, VCT dividend exemption fills the gap left by zero PSA + zero Dividend Allowance.

Common mistakes + audit triggers

Treating PSA as adjusted-net-income-tested (it uses total taxable income, not ANI)
Ignoring Starting Savings Rate for low-income / non-working individuals (£5,000 at 0%)
Holding savings in highest-earning spouse's name when basic-rate spouse has unused PSA
Not maximising ISA annually (£20k/year tax-free, far exceeds PSA value for substantial savers)
Additional-rate taxpayer assuming any PSA available (it's £0 above £125,140)
Confusing PSA (savings interest) with Dividend Allowance (dividends), different reliefs, both available

Worked example

Pratibha, Coventry - Higher-rate-band Ltd Co director with personal cash reserves + spouse below PA (2025/26)

Pratibha: Ltd Co director, 2025/26 income £75,000 (salary + dividends) → higher rate. Personal savings £80,000 in savings account at 4.5% interest = £3,600/year interest income. Husband Imran: stay-at-home parent, £0 income.

Calculation: **Current position (savings in Pratibha's name):** Pratibha's PSA at higher rate: £500. Taxable interest: £3,600 - £500 = £3,100. Tax at higher rate 40%: £1,240. **Alternative: shift £80,000 savings to Imran's name (lower-earning spouse).** Imran's total income £0 + £3,600 interest = £3,600. - Personal Allowance covers full £3,600 (well below £12,570 PA) → £0 tax - PSA + Starting Savings Rate available but unused (PA absorbs all interest) **Tax: £0.** **Saving: £1,240/year** by holding savings in Imran's name. **Combined with Marriage Allowance:** Imran can transfer £1,260 PA to Pratibha → Pratibha's PA increases by £1,260. Pratibha's tax saved: 20% × £1,260 = £252. (Note: Pratibha is higher rate, so Marriage Allowance preserves £252 of basic-rate band coverage, actually saves at 20% not 40%.) **Total household tax saving via spouse-shifting + Marriage Allowance:** £1,240 + £252 = **£1,492/year**. **Documentation:** - Transfer savings to joint account or Imran's sole name (gift between spouses tax-neutral). - Apply for Marriage Allowance via gov.uk/marriage-allowance (Imran initiates as lower earner). - Report interest correctly on Imran's tax return (likely no SA needed if total income remains below £17,570). **Strategic note**: For couples with materially different income levels, shifting savings + claiming Marriage Allowance is a £1,000+/year recurring saving from a simple administrative action. **Eligibility qualifier**: this worked example combines multiple reliefs and specific income assumptions. Whether all of them apply to you, and the saving available in your case, depends on your individual income position, residency, and employer arrangements. See /why/editorial-scope.

Statute reference: Finance Act 2016 + Income Tax Act 2007 ITA 2007 ss.7-12 (Starting Rate for Savings + Personal Savings Allowance). HMRC manual: SAIM1100 onwards.

Frequently asked questions

What happens if I miss the Self Assessment deadline?+

The Self Assessment deadline is 31 January (online filing) for the previous tax year. Miss it and HMRC apply an automatic £100 penalty. Beyond that: £10 per day from 3 months late (capped at £900), 5% of tax due at 6 months late, and another 5% at 12 months late, under Schedule 55 of the Taxes Management Act 1970. If you have a genuine reason (serious illness, bereavement, technical issue with HMRC's systems) you can appeal with evidence; HMRC accepts reasonable excuse appeals in most genuine cases.

Do I need an accountant or can I file Self Assessment myself?+

Legally you can file Self Assessment yourself via gov.uk for free, most simple sole-trader returns (single income source, basic expenses) are realistic to self-file. An accountant adds real value when: your trading profit is above £40,000 (extraction-strategy decisions matter), you have multiple income streams (PAYE + self-employment + property + dividends), you've crossed the £90,000 VAT threshold, you're considering incorporation, or you have an HMRC enquiry. Expect to pay £400-£1,500/year for a typical sole-trader accountant; the cost is itself a deductible expense.

How do payments on account work?+

When your Self Assessment tax bill exceeds £1,000 for the first time, HMRC requires payments on account toward NEXT year's tax. Half the current bill is due 31 January (alongside the current bill); the other half is due 31 July. So your first January after crossing the threshold can hit with a double-bill: last year's balance + first payment on account. Adjust via Form SA303 if you expect next year's income to drop substantially. Payments on account don't apply if more than 80% of your tax is collected via PAYE.

I'm a Ltd Co director with £55,000 income, what's my PSA?+

£500 (higher-rate band starts at £50,271 in 2025/26). Half the basic-rate PSA. If you can structure remuneration to stay below £50,270 (e.g. via pension contributions reducing adjusted net income, though PSA test uses TOTAL TAXABLE INCOME, slightly different from adjusted net income, pension contributions DON'T reduce TOTAL INCOME for PSA purposes). The PSA test is gross income before pension contributions deducted. Strategic options: hold savings via spouse (if lower-earning) → spouse may have full £1,000 PSA available; hold savings in ISA (£20,000/year limit, all interest tax-free, no PSA dependency).

I'm not working + only have £15,000 of savings interest, what tax do I pay?+

Likely ZERO. Calculation: Personal Allowance £12,570 covers first £12,570 of any income; Starting Savings Rate £5,000 at 0% then covers next £5,000 of savings interest. Total income £15,000 fits within £12,570 PA + £5,000 SSR + £1,000 PSA = £18,570 of tax-free coverage. £15,000 of savings interest entirely tax-free in this scenario. Useful for retired non-working individuals living off savings interest.

Does PSA apply to my Ltd Co loan interest received?+

Yes, interest received from connected loans (e.g. director loan account interest, loan to family member at interest) is SAVINGS INCOME for PSA purposes. Treated the same as bank interest. Watch the IR35-adjacent rules where director-shareholder lending to own company creates artificial-interest arrangements (HMRC anti-avoidance scrutiny). Genuine commercial-rate lending: PSA applies to interest received.

Why is PSA £0 for additional-rate taxpayers, is there ANY tax-free saving option for them?+

ISAs are the universal answer. Stocks + Shares ISA + Cash ISA: £20,000 combined annual subscription, all income + gains tax-free regardless of income band. Additional-rate taxpayers with substantial savings should prioritise ISA usage every tax year (use-it-or-lose-it annual limit). Beyond ISA: National Savings + Investments (NS&I) Premium Bonds, prize winnings tax-free regardless of band. Some investment bonds + offshore structures provide tax-deferral mechanics. For investment income (vs savings interest), VCT dividends remain tax-free regardless of band (separate relief).

Last reviewed: 23 May 2026