20% is not bad, considering that you pay almost 15% self-employment tax on the net profit, plus any income tax. (The net profit is rolled into all your other income and deductions to calculate your income tax, and the self-employment tax is calculated separately.
I also want to discuss the form of the business. As long as you did not create a specific structure like an LLC or S-corp, then would generally file 2 schedule Cs, one in your name and one in your spouse's name, each reporting the share of the work, expenses and profits that pertain to that spouse. You should not have one schedule C for "our business" because then both spouses aren't getting property social security credit in case of disability or retirement. There are other ways to report different business structures that we could talk about (such as one spouse has a business and pays their other spouse as a W-2 employee). But reporting one schedule C for the combined activities is going to be wrong 99% of the time.
Turbotax does not offer specific tax planning services. You can find articles and FAQs here on nearly every topic. For example,
https://blog.turbotax.intuit.com/self-employed/tax-tips-for-the-self-employed-2297/
https://turbotax.intuit.com/tax-tips/self-employment-taxes/the-self-employment-tax/L8xXjolB4
https://blog.turbotax.intuit.com/business-taxes-2/how-to-deduct-business-expenses-what-you-can-write...
Intuit also sells Quickbooks for tracking business income and expenses, that may come with some advice.
https://quickbooks.intuit.com/learn-support/en-us/help-article/mobile-apps/upgrade-quickbooks-self-e...
The IRS has information about business expenses.
https://www.irs.gov/businesses/small-businesses-self-employed
https://www.irs.gov/forms-pubs/guide-to-business-expense-resources
There are a number of books on business expenses, one long running series is "J.K. Lasser's Small Business Taxes 2025: Your Complete Guide to a Better Bottom Line" although there are many others and I don't make any specific endorsements.
