Freelancer money operations
Freelancer Tax Reserve: How Much to Set Aside
A tax reserve is money you set aside from each payment so the tax bill is covered on its due dates. Size it from an estimate of what you will owe for the period, minus payments already credited and the reserve you already hold, and split the gap over the transfers left before the deadline. Keep it in the currency of the bill, in an account you can pay from on time, and update it when income or the estimate changes.
By DmytroUpdated 6 min read
Short answer
- Fund the reserve from an estimate of the liability: estimated liability − payments credited − reserve already saved = the gap to fund.
- Split the gap into dated transfers: a EUR 1,200 gap with 4 transfers before the deadline is EUR 300 each.
- Put every payment date in the calendar: in UK Self Assessment, HMRC collects payments on account as well as a balancing payment.
- Keep the reserve in the bill’s currency, apart from spending money, at a provider you can pay the tax authority from.
Saving is not paying
A transfer to your own reserve moves money; the tax is paid when the authority receives it.
Record the reserve balance and the payments made to the tax authority as two separate things. Find out whether advance or instalment payments apply to you: a payment can fall due before the annual filing date. HMRC’s Self Assessment guidance, for example, separates the balancing payment from payments on account.
How much to set aside
Start from an estimate of the liability and work out the gap.
Begin with an estimate of what you will owe for the period: income tax, social contributions and any other liability that applies to you, after deductions, withholding and credits. Take the estimate from the official guidance for your country or from an accountant. Keep indirect taxes such as VAT, and any client money, in pots of their own.
Then subtract the payments the authority has already credited and the reserve you already hold. What remains is the gap to fund, split over the transfers left before the due date.
| Step | Formula | Example |
|---|---|---|
| Remaining liability | Estimated liability − payments credited by the authority | EUR 5,000 − EUR 2,000 = EUR 3,000 |
| Funding gap | Remaining liability − reserve available | EUR 3,000 − EUR 1,800 = EUR 1,200 |
| Per transfer | Funding gap ÷ transfers left before the due date | EUR 1,200 ÷ 4 = EUR 300 |
Set a transfer rule
A fixed share of each payment funds the reserve without monthly decisions.
Moving a fixed percentage of each payment into the reserve is a practical way to fund it. Write down what the percentage applies to: the gross invoice, the amount received after fees, or another base. That percentage is your saving rate; the tax rate comes from your estimate, so check that the saving rate covers the gap.
Spend from what is left after business costs, the tax reserve and other commitments. A reserve far above the estimate ties up operating cash, so adjust the rate when income, costs or the estimate change.
Where to keep the reserve
Separate from spending money, and ready to pay on time.
Keep the reserve apart from everyday spending, in an account you can pay the tax authority from before the deadline. Check withdrawal restrictions, transfer limits and how long a payment takes to arrive.
Two pots at the same provider share the same outage or account review. A reserve at a second provider, in your own name, keeps the tax payment possible if the main account is restricted.
Keep the reserve in the bill’s currency
A reserve in another currency can fall short on the day you pay.
Find out the currency and date of each tax payment. Holding the reserve in another currency adds exchange-rate risk and a conversion cost on the day you pay.
Example: a EUR 2,000 reserve against a GBP 1,800 bill. At 0.85 GBP per EUR it converts to GBP 1,700 before fees, GBP 100 short. Hold the reserve in GBP from the start, or convert on a schedule and top up the difference.
Record each receipt, invoice, fee and conversion, and value foreign-currency income with the method your tax rules require; the date it uses can differ from the date the money arrived.
Checklist
- Liability estimate and its basis written down.
- Payments to the authority recorded apart from the reserve.
- Next payment date and amount in the calendar.
- Reserve held in the bill’s currency, at a provider you can pay from.
- Reserve updated after every change in income or estimate.
Update the reserve when the estimate changes
Recalculate the gap from the new estimate and count each payment once.
Keep a dated record with four columns: estimated total liability for the period, payments the authority has credited, reserve available, and the next amount and due date. A receipt in your banking app shows the money left your account; the authority’s statement shows it was credited.
Example: estimate EUR 5,000, credited payments EUR 2,000, reserve EUR 1,800. If the estimate rises to EUR 5,600, remaining liability becomes EUR 3,600 and the gap EUR 1,800 (EUR 3,600 − EUR 1,800). With 3 transfers left before the due date, each is EUR 600. Subtract the EUR 2,000 already credited once, from the total estimate.
Before each transfer, check the payee details, the payment reference, the deadline, your transfer limit and the final currency. If the reserve will fall short, contact the tax authority or an accountant before the due date about payment options; a filing extension can leave the payment date unchanged.
FAQ
How much should a freelancer set aside for tax?
Enough to cover your estimated liability for the period, minus payments already credited and the reserve you hold. A fixed percentage of each payment is a way to fund that amount; set the percentage from the estimate.
Is setting aside 20% enough?
Compare it with your estimate. If 20% of expected income covers the estimated liability by each due date, it is enough; if it falls short, raise the rate or add transfers.
Can I spend the rest of each invoice?
After business costs, the tax reserve and other commitments are covered. What remains is your personal budget.
Can I keep the tax reserve in another currency?
You can, with exchange-rate risk: a EUR 2,000 reserve at 0.85 GBP per EUR covers GBP 1,700 of a GBP 1,800 bill. Holding the reserve in the bill’s currency closes that gap.
Sources
- Pay your Self Assessment tax bill — HMRC / GOV.UK
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