Is there any downside to using temporary credit card numbers with subscription services?
I did just what you suggest. The card company honored the charge, they told me the temporary number was solely for the purpose of assigning a number to one vendor/business. So even though I set a low limit, the number was still active and the card company paid the request. Small price to pay, but it didn't go as I wished.    For this purpose, I've used Visa/Mastercard gift cards. They are often on sale for face value and no additional fees. If you've agreed to pay the money, then you owe them whether they have a valid credit card number of yours or not. If they want to report your debt to a collections agency and/or credit bureau, they can. Which would suck for you. It may not be that likely over $9.99 or whatever, but my point is that it's still a small risk even with a temporary card number. You're knowingly providing a payment method which has insufficient funds to meet the terms of the contract, because you are too lazy to comply with the contract. That's unethical and fraudulent behavior. Will you get in trouble? I don't know. I'd suggest getting acquainted with an electronic calendar that can remind you to do things.
"As anecdotal experience, we have a credit account in my name as offered by bank's marketing before I could qualify by common rules for newcomers (I have an account there for years so they knew my history and reliability dynamics I guess), and my wife is subscribed as a secondary user to the same credit account with a separate card. So we share the same limits (e.g. max month usage/overdraft) and benefits (bank's discounts and bonuses when usage passes certain thresholds - and it's easier to gain these points together than alone) so in the end maintenance of the card costs zero or close to that on most months, while the card is in a program to get discounts from hundreds of shops and even offers a free or discounted airport lounge access in some places :) But the bonus program is just that - benefits come and go as global economics changes; e.g. we had free car assistance available for a couple of years but it is gone since last tariff update. Generally it is beneficial for us to do all transactions including rent etc. via these two credit cards to the same account, and then recharge its overdraft as salaries come in - we have an ""up to 50 days"" cooloff period (till 20th of next calendar month) with no penalties on having taken the loans - but if we ever did overstretch that, then tens of yearly percents would kick in. Using the card(s) for daily ops, there is a play on building up the credit history as well: while we don't really need the loans to get from month to month, it helps build an image in the face of credit organizations, which can help secure e.g. favorable mortgage rates (and other contract conditions) which are out of pocket money range :) I'd say it is not only a ""we against the system"" sort of game though, as it sort of trains our own financial discipline - every month we have (a chance) to go over our spendings to see what we did, and so we more regularly think about it in the end - so the bank probably benefits from dealing with more-educated less-random customers when it comes to the bigger loans. Regarding internet, we tend to trust more to a debit card which we populate with pocket money sufficient for upcoming or already placed (blocked) transactions. After all, a malicious shop can not sip off thousands of credit money - but only as much as you've pre-allocated there on debit." Having worked at a financial institution, this is a somewhat simple, two-part solution. 1) The lendor/vendor/financial institution simply turns off the overdraft protection in all its forms. If no funds are available at a pin-presented transaction, the payment is simply declined. No fee, no overdraft, no mess. 2) This sticking point for a recurring transaction, is that merchants such as Netflix, Gold's Gym etc, CHOOSE to allow payments like this, BECAUSE they are assured they are going to get paid by the financial institution. It prevents them from having issues. Only a gift card will not cost you more money than you put in, BUT I know of several institutions, that too many non-payment periods can cause them to cease doing business with you in the future. TL:DR/IMO If you don't want to pay more than you have, gift cards are the way to go. You can re-charge them whenever you choose, and should you run into a problem, simply buy a new card and start over. This will have no effect on your credit score.  Even though your credit card account number is changing, it is still the same account, so your history of payments and age of accounts will remain unchanged. If you want to ensure that you stop paying interest, the best thing to do is to not use the card for a full billing cycle.  Calculating credit card interest with precision ahead of time is difficult, as how you use the card both in terms of how much and when is critical. The answer: don't use your actual card number. Some banks offer virtual credit card numbers (services like Apple Pay are functionally the same). Bank of America's virtual cards work like this: The virtual card number is different from your actual card number, so the merchant never sees your real card number. In fact, the merchant cannot even tell that you are using a virtual card. You can set the maximum amount to be charged. You can set the expiration date from 2 to 12 months. Once the merchant has made a charge on that virtual card, only THAT MERCHANT can make any further charges on that same virtual card. It is not possible to discover the real card number from the virtual card number. So the result is that your risk is reduced to the merchant not delivering the order, or charging too much (but not over the limit you set). There is nothing to be stolen since your real info never goes over the internet, and once a merchant has used the virtual card once, no other merchant can use it. Other banks may have virtual cards which have fewer features. The only DISadvantage of this is that you have to go to the bank's website whenever you want to make a purchase from a new merchant. But you don't have to worry about them stealing your real credit card information. If the card has no annual fee, you can keep it for as long as you like and you will never get charged. I advise you to GoPaperless so you stop getting the $0 bills every month. Many cards have the fee waived for the first year. If you have such a card, you should make sure to cancel it when you stop using it, or when the fee waiver expires. I had a good half dozen of these with various amounts, none of them quite enough to make a purchase anywhere and, like you, I didn't want them to go to waste.  If there is at least $1 on the card, you can use it to buy Amazon eGift cards, which is what I did. It's not as nice having actual cash, but for me it was the next best thing. You can also use them to sign up for free trials for subscriptions. If you forget to cancel, then you're saving your normal credit card from being charged. "There's many concrete answers, but there's something circular about your question. The only thing I can think of is that phone service providers ask for credit report when you want to start a new account but I am sure that could be worked around if you just put down a cash deposit in some cases. So now the situation is flipped - you are relying on your phone company's credit!  Who is to say they don't just walk away from their end of the deal now that you have paid in full?   The amount of credit in this situation is conserved. You just have to eat the risk and rely on their credit, because you have no credit. It doesn't matter how much money you have - $10 or $10000 can be extorted out of you equally well if you must always pay for future goods up front. You also can't use that money month-by-month now, even in low-risk investments. Although, they will do exactly that and keep the interest. And I challenge your assumption that you will never default. You are not a seraphic being. You live on planet earth. Ever had to pay $125,000 for a chemo treatment because you got a rare form of cancer? Well, you won't be able to default on your phone plan and pay for your drug (or food, if you bankrupt yourself on the drug) because your money is already gone. I know you asked a simpler question but I can't write a good answer without pointing out that ""no default"" is a bad model, it's like doing math without a zero element. By the way, this is realistic. It applies to renting in, say, New York City. It's better to be a tenant with credit who can withhold rent in issue of neglected maintenance or gross unfair treatment, than a tenant who has already paid full rent and has left the landlord with little market incentive to do their part." quid has expressed some of the disadvantages with this approach, but there is another. Vendors will not want to give you any goods you buy with your credit card until they are sure they will get the money. With your suggested approach buying something with a credit card now looks like: No vendor is going to stand for this for even moderate sized transactions, so in reality they will just decline your card if you have this facility enabled. "A few years ago I had a US bank credit card that was serviced (all support, website, transaction issues) handled by FIA Card Services (part of Bank of America). I could create one-use credit card numbers, or time-limited (for example, 3 months) numbers.  I could also create (""permanent)) extra card numbers.  All of these could have a max charge value (IIRC, even a fixed value), so you could have a separate card number, with a limit, just for a subscription service or gym membership. The Bank issuing the card cancelled the entire card offering, so I lost these features. Maybe FIA still provides these features on cards they service. As a note to pjc50 (can't comment in this SE yet), Japan has had contactless cards for >10 years, but during use they tend to place them in a special tray (with the sensor underneath) during the transaction." "I think what you are looking for is a secured credit card. They are mostly used by people who have ruined their credit and want to rebuild it, but it might also serve your purpose.  Essentially you deposit some money in an account and the credit card can be used up to the amount left in the account. Each month when you pay the bill, it resets the balance that you can charge. Also, many credit card providers also offer ""disposable"" or ""one use"" credit card numbers for the express purpose of using it online. It still gets charged against your regular account, but you get a separate number that can only be used for up to X dollars of transactions." Honestly, if you're going to restrict the online payment on your card over this, you may as well just restrict it permanently. Because this is definitely not the only time anyone has had an opportunity to retrieve the information on your card. There isn't really that much information on there - anyone taking more than a cursory look could in theory remember it and use it. We're talking waiters and checkout chicks, anytime you've given your card to anyone really. Banks know this. Credit card numbers are not really secure. They factor this in. And they  have software for fraud detection - looking at large or unusual transactions and transactions in foreign countries etc. Of course it's not fool proof, but the best thing you can do isn't to cripple your card, but just be a little bit more diligent about checking your statements, making sure the transactions make sense. Some banks also allow you to set up an alert system so anytime any transactions occur you are notified immediately. Another good reason: if you have to replace a card due to damage, loss, or identity theft it's nice to have a backup you can use until the new card for your primary account arrives. I know folks who use a secondary card for online purchases specifically so they can kill it if necessary without impacting their other uses, online arguably being at more risk. If there's no yearly fee, and if you're already paying the bill in full every month, a second card/account is mostly harmless. If you have trouble restraining yourself with one card, a second could be dangerous. It depends on your bank and your terms of service, but using the card one way or the other may affect things such as how long it takes to process, what buyer protections you have, etc.  It also affects the store as I believe they are charged differently for debit vs credit transactions. In my business (estate planning law practice), probably 60-70% of my income is in the form of checks, with the balance as credit/debit cards. I prefer to get paid by check so I don't have to pay the approx 2.5% merchant fee, but I don't push clients to choose one method over the other. I offer direct deposit to my employees but most of them choose to be paid by check. Also, check processing is becoming more and more electronic - when I get paid by check, I scan the checks in a dedicated desktop scanner, and upload the check images to the bank at the end of the day, and the checks are processed very quickly. I also make deposits to my personal credit union account by scanning checks and uploading the images.  So, yes, there's technically a paper check, but I (as the merchant/recipient/depositor) keep the check for a few months to make sure there's no problem with the deposit/payment, then shred them. The bank never sees the actual paper check.