There’s a common debate about whether to diversify your income or stay specialized, although the statistics are factual. Nearly half of Americans have at least two revenue streams, and multimillionaires have at least seven. The reason is simple. Having multiple income streams equips you with options and provides you with financial stability.

Once you decide to have multiple revenue streams or you already have them, the most critical thing to keep in mind is taxes and remaining compliant. However, more crucial is to plan so you have plenty of time to define a strategy and save for tax payments. Never wait until the last moment.

Step 1: Treat each income stream like a business

Whether you earn a W-2 salary, work as a freelancer or contractor, consult, rent properties, or trade stocks and other assets, each activity follows its own set of tax rules.

You wouldn’t declare Airbnb earnings under your payroll, for example. First, you must set up the correct legal entity, such as a single-member LLC, S-Corp or C-Corp. Ticking the right boxes can significantly reduce your liability. A building contractor with multiple earning streams might benefit from switching from an LLC to an S-Corp, which could potentially save you up to $20,000 in taxes.

Related: What Is an LLC? Here’s How It Works.

If you own properties and rent them out, you will want to separate your expenses. It can boost deductions significantly. It is also a way to accelerate depreciation write-offs, allowing you to retain more cash now instead of waiting 20 years.

If you are selling one or several properties, you need to check out a 1031 to defer capital gains taxes by rolling your profits into a different investment.

Step 2: Pay taxes as if your life depended on it

This year, you cashed in on consulting, bonuses, stock options or a side gig. Think ahead, because you don’t want April to bring an unexpected tax bill that devastates your cash flow. That’s the reality for many who ignore quarterly taxes.

So, set aside 25 to 30% of every non-W-2 dollar. Track earnings, make quarterly payments and avoid penalties or fines or both. Vendors accept payments quarterly. You should treat IRS installments the same way.

Related: How Smart Entrepreneurs Turn Mid-Year Tax Reviews Into Long-Term Financial Wins

Step 3: Track your deductions all year round

Most people wait until March, then frantically search through their emails for receipts and invoices. Not a good idea. Start thinking about taxes in July, when you can make smart, sensible and timely moves. If you are a freelancer or contractor, you may deduct expenses such as your home office, internet bill and travel to meetings with clients, including business lunches.

Please don’t become the entrepreneur who misses a $3,000 gasoline deduction because they didn’t track their mileage to all those meetings and lunches. There’s no need to go to extremes, either, so don’t try to claim dog grooming or any other suspicious “business expense,” as it will raise red flags.

“The optimal tax strategy isn’t always about pushing every possible benefit to its limit — it’s often about creating a framework that allows for consistent, long-term, justifiable tax efficiency,” said George Dimov, CPA, who helps professionals navigate the complex tax and planning system.

It’s a good idea to maintain all your records in a spreadsheet or app to log expenses as they happen, and you’ll thank yourself when tax season arrives.

Related: Why Mid-Year Tax Reviews Are a Must for First-Time Entrepreneurs

Step 4: Expats, don’t miss these tax breaks

If you are a US citizen earning abroad, operating a business from Thailand, or consulting for clients in Europe, taxes can become overwhelming. Tax law has a provision that allows approximately $120,000 of foreign-earned income to be excluded from US taxes. Be sure to check this number annually, as the exact amount changes frequently.

The foreign tax credit can also save you from paying taxes twice if you are taxed overseas. However, you must report all relevant information, including foreign businesses, bank accounts and even small investments. There are fines of about $10,000 for failing to report a foreign bank account.

Research as much as you can about international taxes or consult an expert who knows the subject and can save you time, trouble, and money.

Related: 5 Tips for Finding the Tax Advisor Who Will Save You Millions

Bottom line: multiple streams call for multiple planning layers

More income streams mean more options, but also more tax complexity. Success lies in structure, timing, and ongoing management. Structure your entity to match your objectives. Pay quarterly. Plan mid-year. Track everything. However, taxes don’t have to be a nightmare.