The growth of wire transfers, electronic transfers in Mexico and the need to purchase money from abroad have raised an alarming question: what amounts can be purchased in a bank account without declaration and without attention from the SAT Tax Administration Service. This is especially true for individuals, freelancers, expats and those who regularly receive transfers from friends or from abroad.
Is there a «safe limit» for bank transfers
For electronic bank transfers, including through the Mexican interbank transfer system SPEI, the SAT does not set a maximum threshold, above which an automatic obligation to file a return or pay tax arises. Unlike cash transactions, tax laws do not contain a numerical limit «up to X pesos — possible, after — required to declare».
But this only means that it is not the amount itself that matters. Electronic transfers are fully traceable: the bank knows the sender, recipient, date, purpose of payment and movement of funds in the account. For this reason, SAT does not bet on the amount, but on the origin of the money.
First, any amount that goes into your account is potentially taxable.
Secondly, when asking the bank or SAT, the onus is on you to prove that the money — not the result of commercial activity, but if the result — that they are declared.
Third, for the SAT it does not matter whether the amount came from a Mexican source or from a foreign country, and that you are not conducting business in Mexican territory. If the amount is deposited into a Mexican account, consider yourself a Mexican taxpayer.
Banks have the right to set their own transfer limits, daily, monthly or per transaction. These restrictions are not tax, but internal, and depend on the policy of a particular bank and the type of account. Banks will not understand your accounting, but in addition they simply have the right to block your account, and most often, on two grounds:
- suspicious transaction — illegal origin of money, laundering, transfer from «unreliable» powers, etc.,
- you are unable to verify your Mexican tax status or income declaration.
Even just the word «crypto» in the details of the transfer has the right to raise questions from the bank.
This does not depend on the amount of transfers. The bank doesn't force you to pay taxes, it just freezes the account. We explained in detail why a Mexican bank can block an account in thispublications.
Cash deposits
The situation with cash is different. Tax laws require banks to notify SAT when a customer receives more than P15,000 in cash per month, regardless of whether the amount is deposited in one transaction or several.
This does not mean a ban on accepting cash amounts in excess of the specified threshold. However, such a deposit automatically comes to the attention of the tax authorities and may lead to a request for clarification about the origin of the funds. In practice, it is cash, and not bank transfers, that most often cause tax audits.
Note that SAT does not have the resources to check all excesses of the limit on cash deposits; for this reason, only 11% of such cases, and most often with large amounts, are subject to verification.
What is really important for the tax office?
Key Question for SAT — not how much you received, but for what. If the taxpayer has the right to confirm the legal origin of the funds and, if appropriate, the payment of tax on them, problems do not arise even with large receipts.
First of all, invoices (CFDI), contracts, bank statements, and also the correct reflection of income in the annual declaration are used as confirmation. With paper in hand, bank deposits, whether transfers or cash, become mere flows of funds rather than suspicious income.
When transfers are not subject to tax
The law provides for tax exemption in a number of situations. In particular, remittances from immediate family members — parents, children or spouses — are not considered taxable income, provided that they are truly family in nature and can be justified.
Transfers to oneself, including from abroad, will also not be subject to taxation if they look exactly like this (the names of the sender and recipient are the same). More details —Here.
In addition, donations are exempt from tax if their annual amount does not exceed the legal limit — equivalent to three annual minimum wages (SMG) in the region. Anything beyond these exceptions must be declared as income and subject to income tax (ISR) as normal.
In the Mexican tax system, there is no “exempt amount” that can be placed into an account without consequences. Electronic transfers are not limited in amount, but are always transparent to the tax authorities. If she has questions, you should be prepared. Cash deposits are more strictly controlled and automatically attract attention when the monthly threshold is exceeded. But the problems begin not with large sums, but with the lack of explanations about their origin.