October is bringing big financial changes to millions of Americans.  

After a three-year hiatus, 43 million people will start paying off federal student loans again. A similar number will get a small boost to their Supplemental Nutrition Assistance Program, or SNAP (formerly food stamps). More than 3 million children may be at risk of losing childcare after pandemic emergency funds that supported the industry expired on September 30. And finally, 65 million seniors on Medicare will get a chance to tweak their healthcare plans. 

Any one of these things could bring big changes to people’s budgets, which is why we’re breaking down what each of them could mean to your pocketbook. 

Student loan payments begin

By now, you’ve probably already received a statement from your loan servicer. It details the amount of your monthly federal student loan payments and the interest rate charged on your balance. Millions of people will need to make their first loan payment this month after a three-year pause.

Learn more: Best personal loans

If you haven’t, get in touch with your loan service right away. Even though you won’t be reported to credit reporting agencies for a year if you miss your payments, interest will accrue. So, it’s better to start paying if you can. 

Of those making payments, the average monthly student loan payment was between $200 and $299, according to Federal Reserve data from 2018 through May 2019. Nearly 3 in 10 adults with outstanding education debt weren’t making payments because deferments are allowed while people are in college, it said. 

If you were lucky enough to receive loan forgiveness, check to see if you owe state taxes on it. 

SNAP gets a raise 

The cost-of-living adjustment, or COLA, kicked in on October 1 for SNAP recipients, meaning you may see a boost in your check starting this month. 

The maximum monthly amount a family of four can receive is now $973, from $939. The maximum a single person can receive increases to $291 from $281 monthly. On the other end, the minimum benefit in most places will remain at $23 for up to a two-person household. 

While the COLA increase is likely welcomed by SNAP recipients, it won’t fully make up for the loss earlier this year of pandemic-related emergency boosts. By March, the last of the pandemic supplement expired. Every SNAP household saw at least $95 a month less, but some saw reductions of $250 a month or more, according to the nonpartisan research and policy institute Center on Budget and Policy Priorities. 

The average person received about $90 a month less in SNAP benefits after the increase lapsed, it said. 

In fiscal year 2021, 41.5 million people per month, or 12.5% of U.S. residents, used SNAP, the U.S. Department of Agriculture said. In fiscal year 2019, 43% of all SNAP participants were children and 16% were at least 60 years old, it said. 

Parents may lose childcare 

Childcare already costs an average of $1,031 a year more than public college tuition, according to lending platform NetCredit. Now that pandemic-related childcare emergency funding has expired, parents could see that gap widen even further. 

The $24 billion Childcare Stabilization Program, passed through the American Rescue Plan of 2021, allocated funding to more than 220,000 childcare programs and covered as many as 9.6 million children, according to the U.S. Department of Health and Human Services. That program expired on Saturday. 

Without the additional funding, childcare programs may be forced to close. More than 70,000 childcare programs could close, according to The Century Foundation, a progressive public policy think tank. More than 3 million children are at risk of losing their childcare spots, it said. 

The ones that remain open may have to raise prices, experts said, leaving some families perilously close to falling off a financial cliff. 

Childcare cliff hanger:Sept. 30 may represent child care cliff as emergency federal funding runs dry

Medicare open enrollment to begin 

More than 65 million Americans will soon get a chance to switch their healthcare plans with Medicare’s open enrollment beginning October 15 and running through December 7.   

During open enrollment, people with Medicare can change their health plans and prescription drug coverage for the following year to better meet their needs -- whether dictated by health changes, finances or something else. 

Only about one-third of Medicare beneficiaries compare plans during the open enrollment period, according to the nonprofit KFF, which focuses on healthcare policy.  However, experts strongly encourage you to review your coverage because plans often change, especially drug coverage, and you may end up paying more.   

Each year, Medicare health and drug plans can change things like cost, coverage, and what providers and pharmacies are in their networks.  

Medora Lee is a money, markets, and personal finance reporter at USA TODAY. You can reach her at [email protected] and subscribe to our free Daily Money newsletter for personal finance tips and business news every Monday through Friday morning.