Almost everyone asks for the longest period the screen allows. It is the decision that breaks the most instalment plans, because a plan that is not kept is not renegotiated: it falls due all at once and the entire debt moves into the enforcement period. This guide is about the only thing that really decides the outcome, which is the monthly amount you can pay for twelve months in a row without thinking about it.
What the Administration looks at
In applications that fit the automated procedure nobody reads your explanation: a system checks that the debt can be deferred, that the accumulated amount is below the threshold exempt from guarantees, that the timetable fits within the permitted maximums and that the direct-debit account is valid. If everything matches, it is granted in minutes.
Applications that fall outside that perimeter do get an officer, and then what is weighed is something else: whether the proposed timetable bears a relation to the capacity to pay that emerges from the documents provided. A proposal that is out of proportion in either direction (impossible instalments, or very long periods for a small debt) is a common reason for refusal.
And there is a third factor that weighs in both cases: your record. Having failed to keep an earlier deferral is on file, and it stays on file for years.
How far the periods go
The Agencia Tributaria set, in its internal instructions of 2023, in force since 15 April of that year, the maximum periods for the automated procedure without guarantees: up to 24 months for individuals and up to 12 months for companies and other legal entities.
These limits come from the tax office's own instructions, not from an Act, so they can be revised without any law changing. Before taking a figure as good, check the instruction in force on the Agencia Tributaria's electronic office, in its section on the governing rules. And even though the maximum is twenty-four months, asking for twenty-four does not mean getting them: the system may grant fewer.
The method: work from the instalment, not from the period
The way to propose a timetable that holds is to turn the reasoning round. You do not start from "how many months will they give me?", but from "what can I pay in the worst month of the year?". Divide the debt by that figure and you have the number of instalments. If that number does not fit within the maximum, the problem is not the timetable: the debt is too large for the cash flow, and that has to be tackled another way.
To reach that figure, a twelve-month table with four lines does the job:
| Line | What goes in it |
|---|---|
| Foreseeable receipts | Only what is reasonably certain, not what is hoped for |
| Fixed costs | Payroll, rent, the self-employed social security contribution, utilities, loans |
| Current taxes for the year | The VAT and payments on account that will fall due while the instalment plan runs |
| Margin | A cushion for the month when something goes wrong |
The third line is the one people forget and the one that breaks agreements. A twenty-four-month plan lives alongside eight quarters of VAT, eight quarters of instalment payments and two annual returns. If the instalment is worked out on the assumption that nothing else falls due for two years, the agreement breaks in the third or fourth quarter, not at the end.
An example of the arithmetic
A debt of 9,000 € and cash flow that can bear 600 € a month without choking. The temptation is to ask for twenty-four months because the instalment looks small; the prudent decision is the opposite.
| Timetable | Principal per instalment | What it means |
|---|---|---|
| 6 months | 1,500 € | Above real capacity: it breaks |
| 15 months | 600 € | Fits the margin, and leaves room for current due dates |
| 24 months | 375 € | Comfortable in the first month, but two years exposed to something changing |
Late-payment interest has to be added to the instalments. It is calculated on the outstanding capital and appears already broken down in the decision granting the plan. We do not give the rate here because it is set each year by the State Budget Act: the one that applies is the one in force for your year, and the decision shows it instalment by instalment. What the table does show, without needing any rate, is that stretching the timetable also stretches the period over which interest accrues.
Between fifteen and twenty-four months, we propose fifteen. An instalment plan that gets paid is better than one that breaks, and the one that breaks does not cost the difference in interest: it costs the whole debt at once.
What exactly happens when an instalment is missed
Article 54 of the Reglamento General de Recaudación, the General Collection Regulations, distinguishes between situations, and the difference matters.
- In a simple deferral (a single due date), non-payment opens the enforcement period the next day if the debt was in the voluntary period, and enforced collection continues if it was already in enforcement.
- In an instalment plan with a full waiver of guarantees or with a global guarantee, if the unpaid instalment contained debt that was in the voluntary period, enforced collection starts on it and the outstanding instalments fall due early. This is the domino effect that almost nobody warns you about when you sign.
- In an instalment plan with partial, separate guarantees for each instalment, the default only drags in the instalments covered by that particular guarantee; the rest of the agreement remains alive.
Early maturity is not a penalty that someone decides to impose: it is the effect the rules attach to non-payment. And a returned direct debit is a non-payment, even if the money reached the account the next day. That is why the due date is chosen by looking at when you get paid, not at when you feel like paying.
How to steer it back before it is too late
An instalment plan that starts to pinch gives weeks of warning: it shows in the cash forecast long before a debit is returned. That is where something can be done.
- Get ahead of the due date. If you can see that a particular month will have no balance, there is room to rearrange payments before that date. After the debit has bounced, that room no longer exists.
- Pay the instalment even if it hurts. Comparing the cost of covering one instalment with the cost of the whole outstanding debt falling due usually settles the question in a minute.
- Put forward a new application with the changed circumstances. If the situation has genuinely worsened and that can be proved, a different timetable can be requested. What cannot be done is to repeat the same application unchanged, because it will be declared inadmissible.
- Keep filing your current returns. A deferral agreement may be made conditional on the applicant meeting their tax obligations while it is in force. Stopping filing returns while paying off an instalment plan is the worst possible combination.
Your record is part of the timetable too
Having broken a deferral weighs on the next application, and weighs more than any explanation. It is one of the reasons we recommend short timetables even when the screen offers more: an agreement that is kept leaves a clean record for the time when you really need to ask for something large.
If you want us to build the cash-flow table with you before proposing anything, the deferral form collects the information it is built from: what is owed, which period each item is in, and what falls due over the coming months. Where the debt comes from past years, also read deferring what comes out of catching up on past years, because the order of operations changes.
Here we describe how a proposal is built and what effects the rules attach to default. Neither the grant nor the number of instalments depends on us, and we do not guarantee them. The figures in the example are illustrative and are no substitute for a calculation on your own numbers.
The frequency and the day of the month are chosen too
On the form you decide not only how many instalments there will be, but how often they fall due and on which day of the month. These are two boxes that almost nobody thinks about, and they decide whether the agreement is kept.
- Monthly frequency is the most usual and the most manageable, because it spreads the effort. A quarterly frequency concentrates the payment in the same month as VAT and payments on account fall due, which is exactly the worst moment.
- The due day is best set a few days after the date on which your regular income comes in, not before. A charge on the 1st for a business that gets paid on the 10th is a returned debit waiting to happen.
- The first due date can be placed with some slack after the application. That initial slack is what lets you put your cash in order before the charges begin.
What people ask about your tax debt
Can I pay early and close the instalment plan?
The outstanding amount can be paid in early. Interest accrues for the time that has actually elapsed, so paying early reduces it. Do it through the proper channel and keep the receipt.
A debit has been returned. Is the agreement already broken?
A returned direct-debit instalment is an unpaid instalment. The effects depend on whether the instalment contained debt in the voluntary or the enforcement period and on the type of guarantee, under article 54 of the General Collection Regulations. What you cannot do is assume nothing happens: you have to act the same day.
Can they grant me fewer instalments than I ask for?
Yes. The decision may lay down whatever conditions are thought appropriate to secure payment in the shortest possible time. Proposing a reasonable timetable from the start makes that adjustment less likely.
Does it count against me that I broke a deferral years ago?
It is on your record and it is one of the reasons for refusal we see most often. It is not an absolute bar, but it changes the starting point of the next application.