Dear Liz: I sold one mutual fund to invest in another fund with the same company. The tax statement shows this as a capital gain so large that I cannot afford to pay it all in one payment to the IRS. This is a disaster. Is there anything I can do?

Answer: Absolutely. File your tax return on time, since the failure-to-file penalty is much higher than the failure-to-pay penalty. Pay as much as you can when you file the return, and then consider your options.

If you can come up with the remainder within 120 days, then do so. There’s no need to arrange a formal payment plan, but you will owe interest and penalties on the balance until it’s repaid.

If you can’t pay within 120 days, you can ask for an installment agreement. You’ll find an application in most tax software or you can find Form 9465 on the Internal Revenue Service website. You also can try calling the IRS at (800) 829-1040, but prepare for a long time listening to hold music. Budget cuts have left the agency severely short-handed and wait times are considerable.

You also should consider borrowing the money from another source, such as a low-cost personal loan. Another option is to charge what you owe to a low-rate credit card. You’ll pay a small fee for the privilege, but ultimately it may be cheaper than paying interest and penalties to the IRS.