You pay extra when you are late. What about the state?
When you pay late, you face surcharges. When a public payment to you is late, you wait. Let’s make the rules fair on both sides.
Illustrative amounts, not your debt calculation. Rates on 7 October 2026: 3.25% and 4.0625% a year. Annual examples assume constant rates and exclude enforcement costs. The 5/10/20% surcharges are one-off, not annual.
How it works now
Where the rules are unequal
The tax office collects from you — or owes you a refund
When you owe money
+5% / +10% / +20%
Tax debt: €1,000, due 20 October. Collection starts on 21 October: +5% if paid in full before the enforcement notice; +10% within the reduced deadline after notice; otherwise +20%. The 20% surcharge also carries 4.0625% annual interest. The 5% and 10% options do not carry that enforcement-period interest.
A 20% surcharge plus one year late: €240.63 extra on €1,000. That is a 24.06% increase in one year.
When you are owed money
0% → 4.0625% a year
An ordinary IRPF or VAT refund: up to six months at 0% within the legal processing period. If the tax authority delays beyond it, 4.0625% a year accrues automatically. Money wrongly collected or paid twice already earns that rate from the mistaken payment date. You get no matching 5/10/20% surcharge.
You face up to 20% extra. The tax authority owes you no matching 5%, 10% or 20% — and gets up to six interest-free months for ordinary refunds.
Your self-employed contribution — and your benefit
When you owe money
+10% / +20%
Miss your regular autónomo contribution to Seguridad Social? Pay in the next calendar month: +10%. From the second month: +20%. €1,000 becomes €1,100 or €1,200. Enforcement can add 4.0625% annual interest.
In an example exactly one month late: €100 extra on €1,000. Simple annualisation gives 120%; a comparison, not the statutory annual rate.
When you are owed money
€0 automatic surcharge
Your benefit is approved. The payment date passes. No money. No automatic matching 10% or 20% surcharge for you. Getting the payment itself may take court action. Other grounds for interest can apply, but there is no mirror rule for your benefit.
Your late payment gets a surcharge. Your late benefit gets €0 in that automatic surcharge. You still have to chase the money.
The state accepts it owes you — but does not pay
When you owe money
3.25% a year
Pay a State Treasury debt late and the general rule starts interest the next day: 3.25% a year. That is €32.50 a year on €1,000. Tax and other special debts have their own rules.
You are late — interest starts. No reminder needed.
When you are owed money
3 months + a written claim
The state admits it owes you. Under the general rule you first wait three months after recognition or notice of the judgment. Then you must demand payment in writing. Only then does 3.25% annual interest start.
The state is late — first wait. Then ask for interest.
You must repay a grant — but your approved grant is unpaid
When you owe money
4.0625% a year
Repay a grant and the current repayment interest is 4.0625% a year: €40.63 annually on €1,000. That is the 3.25% statutory rate increased by a quarter, not 25% of the debt.
You repay — every day costs money.
When you are owed money
No matching general rule
Your grant is approved, every condition met, the payment deadline gone. Still no money. The grants law has no general automatic mirror compensation at that same rate. Other interest entitlements may apply separately.
You wait for payment — no matching automatic compensation.
They pay you late — so you fall behind too
When you owe money
You owe €300
Miss a €300 Seguridad Social contribution and the debt remains; surcharges can grow. Even if the same system owes your €1,000 benefit, you cannot simply offset it against your contribution.
They withhold your money. You can then be charged for not having it.
When you are owed money
A double hit
Your benefit is unpaid, leaving you unable to pay the contribution. The contribution debt stays. You wait for your own money while facing new surcharges.
One state delay. Two problems for you.
How it should work
What our proposed law would change
This is a proposed law. These rules are not in force yet.
The tax office collects from you — or owes you a refund
When you owe money
+5% / +10% / +20%
Tax debt: €1,000, due 20 October. Collection starts on 21 October: +5% if paid in full before the enforcement notice; +10% within the reduced deadline after notice; otherwise +20%. The 20% surcharge also carries 4.0625% annual interest. The 5% and 10% options do not carry that enforcement-period interest.
A 20% surcharge plus one year late: €240.63 extra on €1,000. That is a 24.06% increase in one year.
When you are owed money
4.0625% a year
The same interest rate — currently 4.0625% a year. But an ordinary refund delayed by the tax authority starts earning it after three months, not six. Wrongly collected payments still earn interest from the payment date.
Your money stops being a six-month interest-free loan. Interest starts after three months.
Your self-employed contribution — and your benefit
When you owe money
+10% / +20%
Miss your regular autónomo contribution to Seguridad Social? Pay in the next calendar month: +10%. From the second month: +20%. €1,000 becomes €1,100 or €1,200. Enforcement can add 4.0625% annual interest.
In an example exactly one month late: €100 extra on €1,000. Simple annualisation gives 120%; a comparison, not the statutory annual rate.
When you are owed money
+100 € / +200 €
The organisation delays an approved benefit: it adds 10% if paid in the next calendar month, 20% from the second. On €1,000, that is another €100 or €200. Automatically.
The system pays late — it pays you extra. No separate fight for the surcharge.
The state accepts it owes you — but does not pay
When you owe money
3.25% a year
Pay a State Treasury debt late and the general rule starts interest the next day: 3.25% a year. That is €32.50 a year on €1,000. Tax and other special debts have their own rules.
You are late — interest starts. No reminder needed.
When you are owed money
3.25% a year
The same statutory rate — currently 3.25% a year — starts automatically the day after payment is due. No date set? The debt falls due after 30 calendar days from recognition or notice of the judgment. Special rules remain.
When you are owed money, the interest clock starts by itself.
You must repay a grant — but your approved grant is unpaid
When you owe money
4.0625% a year
Repay a grant and the current repayment interest is 4.0625% a year: €40.63 annually on €1,000. That is the 3.25% statutory rate increased by a quarter, not 25% of the debt.
You repay — every day costs money.
When you are owed money
4.0625% a year
An approved grant with its conditions met is paid late: the authority pays the same interest rate it charges you on repayment. Currently 4.0625% a year, automatically from the day after the due date.
One rate in both directions. Whoever holds up the money pays.
They pay you late — so you fall behind too
When you owe money
You owe €300
Miss a €300 Seguridad Social contribution and the debt remains; surcharges can grow. Even if the same system owes your €1,000 benefit, you cannot simply offset it against your contribution.
They withhold your money. You can then be charged for not having it.
When you are owed money
No chain of late charges
If a delayed benefit prevents payment to the same system, surcharges, interest and enforcement pause during the delay, up to the amount owed to you. The €300 principal remains payable.
The state must not inflate your debt because it has failed to pay you.
What else the proposal includes
- A 35% surcharge if unjustified non-payment of a benefit continues for 15 days after a formal payment demand by the supervisory body or court.
- If a refusal is overturned and benefits are recognised retrospectively, the proposal adds interest for that period. When a mutua is more than 10 days late, its supervisor may order a substitute payment.
- From day one of delay, notify the beneficiary, the case officer and their supervisor. The organisation pays; an alert does not itself impose a personal penalty on an employee.
Proposal text and sources
We support a law on reciprocity and economic responsibility of public administrations: a public debtor should not face cheaper late payment simply because it is a public body.
What we ask for
- An automatic surcharge for the beneficiary when an acknowledged benefit of a determined amount is overdue and unpaid.
- Consequences for public debtors at least equivalent to those for citizens within the same system, unless a difference is objectively justified and proportionate.
- Technical or grace periods only with objective justification: delayed benefits must not become free financing.
- Prevent debt chains: where a delayed public payment directly prevents a citizen paying the same public system, no surcharges or interest on the corresponding amount for the overlapping period.
- Automatic alerts to the responsible officer and supervisor, and to the oversight body for prolonged delays. Operational responsibility must be visible.
Recipients
- Parliamentary groups and political organisations
- Congress of Deputies of Spain
- State Secretariat for Social Security and Pensions / DGOSS
- Spanish Ombudsman (Defensor del Pueblo)
A public support campaign. This is neither a qualified electronic signature nor a formal popular legislative initiative (ILP).
Tax surcharges are alternatives, not cumulative. The 10% requires timely payment of both the full debt and surcharge. Refund periods run from the applicable filing deadline or request; a late return runs from its filing date. Interest ends when repayment is ordered; delays not attributable to the tax authority are excluded. The contribution example is a registered autónomo with correct TGSS data. Contribution interest becomes payable after 15 days from the enforcement notice if unpaid: principal interest runs from lateness, surcharge interest from when payable for this purpose. Deferrals, suspensions and special regimes can change the calculation.
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