Self Assessment loans. Spread your tax bill.
Spread your January Self Assessment bill from £10,000 to £500,000 over 3 to 12 monthly instalments. Paid directly to HMRC. Decision within 24 hours.
£10k–£500k
Facility size
3–12mo
Term
24hr
Decision
1–5 days
Funding
Who this is for
For directors, freelancers, and partnerships with lumpy income.
Self Assessment finance is built for high-earning directors with significant SA bills, freelancers and consultants whose income lands unevenly, sole traders facing an unexpected balancing payment, and partnerships managing the twice-a-year payment-on-account cycle.
The point is simple. Avoid HMRC late-payment penalties (5% at day 30, an additional 5% at six months, a further 5% at twelve months). Spread a six-figure bill across manageable monthly instalments. The lender pays HMRC directly on your behalf, so there is no risk of the cash being misused. Available before or after the deadline.
Rates 1.2 to 2.0% per month, plus a 1 to 2% setup fee. Final terms depend on lender appetite and your profile. We arrange the whole process and tell you what each lender wants before you commit.
RATES & TERMS · APRIL 2026
Typical parameters for this product.
INDICATIVE
1.2–2.0%
Monthly rate
1–2%
Arrangement fee
3, 6, 9, 12 mo
Term
£10k–£500k
Loan amount
HOW IT WORKS
Three steps. No drama.
1
Tell us the bill and the date
Amount of the SA liability and when it falls due. Most decisions back within 24 hours.
2
We source the best option
We route to the lender best suited to your profile and tax type. You see the quote before you commit.
3
Funds paid direct to HMRC
On signing, the lender settles HMRC on your behalf. You repay in fixed monthly instalments over 3 to 12 months.
Model your Self Assessment bill
SELF ASSESSMENT BILL
Self Assessment loan calculator
Model the cost of spreading a Self Assessment bill across 3 to 12 months.
Term
Monthly repayment
£5,390
per month for 6 months
- Setup fee (1%)£300
- Total interest£2,340
- Total cost of borrowing£2,640
Indicative only. Based on a typical rate of 1.3% per month plus a 1% setup fee. Final rate depends on lender appetite and your business profile.
QUESTIONS WE GET
Straight answers.
When is Self Assessment due?
31 January for the balancing payment and the first payment on account. 31 July for the second payment on account.
What happens if I miss the deadline?
5% penalty at 30 days late, an additional 5% at six months, a further 5% at twelve months, plus daily interest from day 1 at HMRC base + 4% (currently around 7.75% APR).
Is this regulated?
No. This is unregulated commercial finance for business directors and self-employed individuals. We are a commercial finance broker, not a lender.
Can sole traders use this?
Yes. Sole traders and partnerships can apply, subject to lender criteria. A personal guarantee is standard for limited company directors.
Can I apply after the 31 January deadline?
Yes. The earlier the better, but post-deadline applications are common. Settling quickly stops further penalty tiers and caps the daily interest cost.
If you do nothing
What HMRC actually does next
HMRC is not out to get you. They have a job to do and they are good at it. These are the steps they take, in order, when a Self Assessment bill goes unpaid. It is not scaremongering. It is the standard debt management process. Knowing the timeline means you can act before the next step arrives.
Stage 01
Day 0: missed deadline
Late-payment interest starts accruing at 7.75% per annum. Daily, not monthly.
Stage 02
Day 15 to 30: penalty cliff
First penalty of 3% at day 15. Another 3% at day 30. Both calculated on the unpaid balance at each date.
Stage 03
Day 31 onwards: the 10% accrual
A second penalty starts accruing daily at 10% per annum until paid in full. It compounds with the interest already running.
Stage 04
Weeks 4 to 12: reminder letters and phone calls
HMRC's Debt Management and Banking team send reminders and an officer phones to demand payment. This is the window where Time to Pay (TTP) is most achievable. After this window closes, Time to Pay arrangements get harder to negotiate.
Stage 05
Weeks 8 to 16: Field Force officer visit
A locally-based HMRC officer visits the business address to confirm contact details and check the current tax position. They can negotiate settlement for debts up to £100,000 on the spot. Not a raid; standard HMRC practice.
Stage 06
Notice of Enforcement
If the visit does not resolve the debt, HMRC issues a formal Notice of Enforcement. 14 days from issue to pay in full or agree a plan. HMRC does not need a court order for this.
Stage 07
Controlled Goods Agreement
If the 14 days pass, an enforcement agent returns and lists business assets on a Controlled Goods Agreement. Seven more days to pay. After that, goods are seized and sold at auction. HMRC can force entry into commercial premises.
Stage 08
Direct Recovery of Debt
For debts over £1,000, HMRC can take money directly from business bank accounts. They must leave a minimum of £5,000 across all accounts after the recovery.
Stage 09
Winding-up petition
HMRC is the most common creditor in UK business insolvencies. A statutory demand gives 21 days to pay or dispute. Miss it, and HMRC can petition the court to wind up the company. Directors face investigation for how the company traded with the debt outstanding.
None of this is inevitable. Every stage is a decision point. The earlier you act, the more options you have. A Time to Pay arrangement before day 30 is usually achievable. Borrowing to pay the bill at any point stops the clock completely. Both are better than waiting to see what HMRC does next.
Enforcement timeline and powers per HMRC published guidance and TaxAid enforcement notes. Figures for HMRC as the largest business creditor via The Gazette and Begbies Traynor insolvency data. Rate (7.75%) sourced live from the Bank of England base rate plus 4%. Funding Flow arranges finance, does not provide insolvency or tax advice.
READY WHEN YOU ARE
Self Assessment due? Spread the bill.
£10k to £500k. Paid direct to HMRC. Decision within 24 hours. No cost to enquire.
Get a quote →Disclaimer · The information on this page is general guidance about UK commercial finance options for limited companies and LLPs. It is not legal, tax, or financial advice and should not be relied on as such. Eligibility, rates, and terms vary by lender and are subject to credit assessment. Tax Bill Loans is a trading name of Funding Flow, a commercial finance broker; arranging finance for UK corporates is outside FCA regulatory scope. For advice specific to your situation, speak to your accountant, solicitor, or a qualified adviser.