The inception of every fiscal year brings with it the arduous task of tax planning. As integral as it may be, juggling between deciphering tax laws and managing business operations could be strenuous. This is where tax lawyers come into play, offering their expertise and ensuring compliance with complex tax laws. However, their services do come at a cost. Hence, it is important for businesses and individuals to make strategic budgetary provisions for tax lawyer services.

With the global economic landscape becoming increasingly intricate, tax laws too have evolved, becoming multifaceted in their nature. Tax lawyers, who specialize in these laws, provide indispensable services such as consultation, managing tax disputes and litigations, and offering advice on tax implications of business decisions. However, it's essential to understand how their fees are structured to budget strategically.

Typically, tax lawyers charge either an hourly rate or a flat fee. The former is dependent on the complexity of the task, the lawyer's experience, and geographical location. The flat fee, on the other hand, is a predetermined amount for routine services like filing tax returns. Understanding these fee structures can go a long way in aiding efficient budget planning.

Drawing from the economic theory of cost-benefit analysis, one should consider the financial implications of hiring a tax lawyer against the potential savings from their services. This involves taking into account the potential tax liabilities, penalties avoided, and valuable time saved that can be otherwise utilized in productive business activities.

The concept of the elasticity of demand, a fundamental principle in economics, can also be applied to this situation. The demand for tax lawyers is relatively inelastic, meaning it doesn't decrease significantly with an increase in price. This is because their specialized services are often a necessity for businesses, particularly during tax season.

However, a rational actor model - derived from social science - suggests that individuals make decisions based on the costs and benefits of each available option to maximize utility. Therefore, if tax complications are minimal, the decision to hire a tax lawyer may not yield optimal utility.

Now, let's delve into a step-by-step guide on how to budget strategically for tax lawyer services.

1. Assessment of Requirement: Depending on the complexity of your taxes and potential disputes, estimate the number of hours you'll need a tax lawyer's counsel. This preliminary step helps establish a ballpark figure for your budget.
2. Understanding Fee Structures: Research the prevailing market rates and understand the billing practices of tax lawyers. Some may charge additionally for out-of-pocket expenses, and it's important to account for these in your budget.
3. Cost-Benefit Analysis: Calculate the potential savings from hiring a tax lawyer against the cost of their services. This might not be precise, but it gives a clearer picture of whether hiring a tax lawyer is financially beneficial.
4. Provision for Contingencies: Legal matters often come with unpredictability. Account for these unexpected costs in your budget.
5. Regular Reviews: Taxes are recurrent, and so is the need for tax lawyers. Regularly reviewing and updating your budget to accommodate these changes keeps you financially prepared.

In conclusion, budgeting for tax lawyer services can be an intricate task, requiring a deep understanding of your tax situation, market rates, and the value these professionals bring. However, with a strategic approach, utilizing principles from economics and social sciences, and a keen understanding of the fee structures, it is an achievable task. Not only does it ensure financial preparedness, but it enables you to tap into the expertise of these professionals, helping drive favorable tax outcomes.